American Mineralogist Crystal Structure Database

1 matching records for this search.

Beta-diopside
 
Plonka A M, Dera P, Irmen P, Rivers M L, Ehm L, Parise J B
 
Geophysical Research Letters 39 (2012) L24307 1-4
Beta-diopside, a new ultrahigh-pressure polymorph of
CaMgSi2O6 with six-coordinated silicon
Note: P = 56.1 GPa
Locality: synthesize from natural sample
_database_code_amcsd 0020131
9.053 7.677 4.751 90 96.34 90 P2_1/c
atom      x     y     z Uiso
Ca(1) .7393 .0675 .0901 .006
Mg(1) .2420 .1641 .4032 .003
Si(1) .5108 .1660 .4627 .006
Si(2) .0316 .8543 .2634 .008
O(1)  .3937 .1693 .1129 .005
O(2)  .3913 .4831 .0857 .004
O(3)  .6154 .2932 .2673 .004
O(4)  .1425 .3516 .2168 .005
O(5)  .1056 .0289 .1983 .009
O(6)  .1082 .7090 .0695 .007
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